@distance : 0;

.header-white {
    position: fixed;
    top: @distance;
    left: @distance;
    height: 50px;
    right: @distance;
    background-color: #f8f8f8;
    /*背景颜色*/
    color: #000000;
    /*字体颜色*/
    font-size: 20px;
    line-height: 50px;
    display: inline-block;
    vertical-align: middle;
    padding-left: 15px;
    overflow: hidden;
    z-index: @distance;
    text-align: center;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.header-blue {
    position: fixed;
    top: @distance;
    left: @distance;
    height: 50px;
    right: @distance;
    background-color: #007AFF;
    color: #ffffff;
    font-size: 20px;
    line-height: 50px;
    display: inline-block;
    vertical-align: middle;
    padding-left: 15px;
    overflow: hidden;
    z-index: @distance;
    text-align: center;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.header-title {
    text-align: center;
    font-weight: bold;
    /*下面都是无法复制的实现!*/
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}

.header-title-white {
    color: #ffff;
    text-align: center;
    font-weight: bold;
    -webkit-user-select: none;
    -moz-user-select: none;
    -ms-user-select: none;
    user-select: none;
}